1. The words that describe the style of this essay are: descriptive and narrative. Since the author narrates the memories he has with his grandfather and grandmother, as well as describing how his grandfather loved scary tales and how it taught him to love that kind of story too.
2. Some words and phrases that help to establish this style are: "used", "I would hear", "Grama would say". This is because the words written in the past tense reinforce the idea of narrating memories, while the description of what the grandmother would do, reform the meaning of descriptive text.
4. The use of the word "rug" shows how memories are influenced by curious and intriguing things, because it is this word that makes the author remember that particular moment.
The author's argument would be most effectively strengthened by using reliable sources and precise data. Without any cold hard facts, all of these points that the author has provided may be considered assumptions, so with facts and reliable sources, the information will be much more reliable.
